The answer is should be b
C. In persuasive text you are trying to get someone who thinks differently to believe in something else, in order to do so you must acknowledge other viewpionts and make rebuttle statements to actually get people to agree with you.
A run-on sentence usually occurs when two separate sentences or clauses are improperly combined. However, unlike sentence fragments, run-on sentences can still be technically grammatically correct. So technically the are bad.
To me I think elephant because its baby or mate would mean another elephant right. Well I hope this helps!